Control panel



FIG. 1 is a front elevational view of the design for a control panel in accordance with this invention;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a bottom right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof. 

The ornamental design for a control panel, substantially as shown. 